Bar traveler for spinning machines



Noq. .30 1926. X 1,608,739

' H. c. HERR BAR TRAVELER FOR SPINNING MACHINES Filed July 24, 1926 Patented Nov. 30, 1926.

UNITED STATES PATENT OFFICE.

HENRY C. HERE, BUFFALO, NEW YORK, ASSIGNOR TO HERB MANUFACTURING 00., INQ, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

BAR TRAVELER FOR SPINNING MACHINES.

Application filed July 24, 1926.

This invention, relates to certain novel im provements in the bar travelers employed in connection with spinning machines.

Heretofore, these bar travelers, which were substantially U-shaped and made of steel wire, have been provided with straight bearing extensions formed by bending the leg portions of the traveler outwardly. The free edges of these extensions engaged the usual bearing face of the traveler guide or ring and such edges, being more or less sharp had a tendency of cutting into the bearing face of said ring, producing a groove and making it necessary to replace such rings from time to time. These sharp bearing edges also had the disadvantage of offering considerable resistance or undue friction to the revolving action of the traveler on its ring, resulting in a jerky movement of the traveler, which produced an uneven tension on the threads and invariably caused them to break.

One of the objects of this invention is to improve the bearing ends or points of the traveler with a view of reducing its frictional contact with the traverse ring to a minimum and rendering the traveler capable of revolving at a uniform speed so as to produce an even and uninterrupted tension on the threads.

Another object is to so design the bearing ends of the bar traveler that they will not injure the traverse ring, thereby prolonging its life and affording a saving to the manufacturer.

In the accompanying drawings: Figure 1 is a fragmentary sectional side view of a spinning machine showing my invention applied thereto. Figure 2 is an enlarged top plan view of the traverse ring and the improved bar traveler mounted thereon. Figures 3 and 4 are transverse sections on the correspondingly numbered lines in- Fig. 2. Figure 5 is a perspective view of the bar traveler.

Similar characters of reference indicate corresponding parts in the several views.

The invention is shown in connection with a spinning machine of any well known construction, and as illustrated in Fig. 1, the same comprises a frame upon the upper end of which is mounted a plurality of vertical rows of supply spools or bobbins 11. The threads 12 extend downwardly from these bobbins and are fed by feed rolls 13, 14

Serial No. 124,592.

thru a guide eye 15 and thence to the cor responding vertically-disposed take-up spool 16 applied to the revolving spindle 17 which is driven by the usual belt 18. In machines of this character, there is a set of feed rolls and a take-up spool for each vertical row of supply bobbins and traversing the several take-up spools from end to end thereof is a vertically reciprocating bar 19 extending lengthwise of the machine, each spool extending thru a corresponding opening 20 in the bar. Mounted on the upper side of the latter and surrounding the companion takeup spool is a traverse ring 21 upon which the improved bar traveler 22 is adapted to revolve. During the operation of the machine, the bar traveler assumes a substantially upright position and revolves with and about the take-up spool, the threads pass ing under the traveler before being wound upon the spool, as shown in Fig. 1. As the take-up spool and bar traveler revolve, the traverse bar 19 is reciprocated so that the threads are uniformly wound upon 'the spool in layers. It has not been deemed necessary to show the means for reciprocating the traverse bar as any well known means may be employed, this feature forming no part of my present invention.

As shown in Figs. 2 and 3, the traverse ring 21 is removably seated on yieldable ledges or brackets 23 rising from a base-ring 24 suitably fastened to the traverse bar 19. The inner edge of the base-ring terminates in an upwardly-facing annular flange 25 which is spaced from the opposing inner edge of the traverse ring to produce an annular channel 26 for receiving the ends of the bar traveler. The lower side 27 of said traverse ring is spaced from the top of the base-ring 24 to produce a lateral continuation of the bar traveler receiving channel and such side is slightly flared or beveled upwardl and outwardly and constitutes a bearing face for the bar traveler.

The improved bar traveler is constructed of steel wire and bent into substantially U-shape to form a horizontal tread-engaging part or guide-bar 28, legs 29 depending from the ends of the guide-bar and arranged to extend freely into the annular channel 26, and extensions 30 projecting outwardly from the lower ends of the legs and adapted to enter the lateral continuation of said channel between the traverse ring 21 and its supporting base plate 24. These leg-extensions are preferably directed upwardly at a slight angle to the bearing face 27 of the traverse ring and their outer ends arecurved downwardly to form convex bearing faces 31 on their upper sides which contact with the bearing face of said traverse ring in the manner shown in Fig. 4.

By constructing and arranging the bearing faces of the bar traveler in this manner, a smooth, convex two-point bearing is provided and the extreme ends or sharp edges of the leg-extensions 30 are free from con tact with the bearing" side of the traverse ring, thereby eliminating the customary jerky movement that was present in such devices. as heretofore constructed and producing a smooth running bar traveler whose frictional resistance is reduced to a minimum and which will in no way injure or cut into the traverse ring. Thus, the life of these rings is'accordingly prolonged and a substantial saving is afforded the manufacturer. Furthermore, the convex bearing points of the bar traveler result in a uniform and uninterrupted speed of the latter with the takeup spool which eliminates the breaking of the threads and also tends toward the production of a thread of high quality.

I claim as my invention:

1. A bartraveler for spinning machines,

having its ends provided with upwardly facing convex bearing portions.

2. A bar traveler for spinning machines, having; bearing extensions at its ends, the free outer portions of said extensions being curved in the direction of their length to provide upwardly-facing convex bearing portions.

3. A bar traveler for spinning machines, comprising a substantially U-shaped member shaped from wire and including a cross bar, legs depending from opposite ends thereof, and hearing extensions projecting outwardly from the lower ends of said legs and having their outer portions curved downwardly to form convex bearing faces.

4. The combination with the traversering of a spinning machine, of a bar traveler revolvably mounted thereon and including a cross bar, legs depending from opposite ends thereof, and bearing extensions projecting outwardly from the lower ends of said legs for engagement with the underside of the traverse Eng, the outer portions of said extensions being curved downwardly to form convex bearing fates arranged to contact with the traverse ring, the outer edges of said bearing extensions being clear of the underside of said traverse ring.

HENRY c. HERB. 

